<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://cdn.staticfile.org/angular.js/1.4.6/angular.min.js"></script> 
    <title>Document</title>
</head>
<body>
    <div ng-app="myApp" ng-controller="myCtrl">
        <input type="text" ng-model="name">
        <h1>{{greeting}}</h1>
        <button ng-click="toSaying()">点我一下试试</button>
    </div>
    <script>
        var app = angular.module("myApp",[])
        app.controller('myCtrl',function($scope){
            $scope.name = '小智障'
            $scope.toSaying = function(){
                $scope.greeting = 'Hello' + $scope.name + '!'
            }
        })
    </script>
</body>
</html>